Google also is setting up special rules around Google+ Hangouts.
"Google+ Hangouts bring people together using live multi-person video, and the results range from heartwarming to awe-inspiring," wrote Horowitz. "However, we recognize that connecting face-to-face is special and serious, so if a stranger outside a teen's circles joins the Hangout, we temporarily remove the young adult, and give them a chance to rejoin."
The social network also just set up the Google+ Safety Center, where it details the new safeguards.
Sharon Gaudin covers the Internet and Web 2.0, emerging technologies, and desktop and laptop chips for Computerworld. Follow Sharon on Twitter at @sgaudin, on Google+ or subscribe to Sharon's RSS feed. Her e-mail address is email@example.com.